<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
</head>
<body>
	<script type="text/javascript">
		    const user = {
		    name: "John",
		    age: 12
		    };

		    /*
		    proxyUser是代理对象, user是被代理对象
		    后面所有的操作都是通过代理对象来操作被代理对象内部属性
		    */
	</script>
</body>
</html>